Legal claims defining the scope of protection, as filed with the USPTO.
1. An image display apparatus, comprising: a display panel having a plurality of electron emission portions that emit electrons, a plurality of light emitting regions positioned corresponding to the plurality of electron emission portions to emit light in response to irradiation of electrons from said electron emission portion thereon, and a shielding member provided between a substrate having said electron emission portions provided thereon and an opposing substrate having said light emitting regions thereon; and a correction circuit that corrects a pixel signal for modulating said electron emission portions, said shielding member shielding electrons reflected from peripheral light emitting regions positioned adjacent to a predetermined one of said light emitting regions to said predetermined light emitting region, and irradiating electrons from said shielding member to said predetermined light emitting region, said correction circuit correcting said pixel signal with a correction value corresponding to the amount of electrons shielded by said shielding member among electrons to be irradiated to said light emitting region and the amount of electrons irradiated from said shielding member to said light emitting region.
2. The image display apparatus according to claim 1 , wherein in said predetermined light emitting regions adjacent to said shielding member, said correction circuit carries out correction to increase said pixel signal corresponding to said predetermined light emitting region based on a value produced by evaluating the amount of reduction in increase in the light emission amount of said predetermined light emitting region, said increase being reduced as electrons coming from peripheral light emitting regions toward said predetermined light emitting region are shielded by said shielding member.
3. The image display apparatus according to claim 2 , wherein the correction value for increasing said pixel signal is adjusted based on the value produced by evaluating increase in the light emitting amount of said predetermined light emitting region by electrons irradiated from said shielding member to said predetermined light emitting region.
4. The image display apparatus according to claim 1 , wherein said correction circuit carries out correction to reduce the pixel signal corresponding to said predetermined light emitting region based on a value produced by evaluating increase in the light emitting amount of said predetermined light emitting region by electrons not shielded by said shielding member among electrons coming from light emitting regions adjacent to said predetermined light emitting region toward said predetermined light emitting region.
5. The image display apparatus according to claim 4 , wherein the correction value for reducing said pixel signal is adjusted based on a value produced by evaluating increase in the light emitting amount of said predetermined light emitting region by electrons irradiated from said shielding member to said predetermined light emitting region.
6. The image display apparatus according to claim 1 , wherein said correction circuit has a table used to derive a gain used to incorporate the amount of electrons irradiated from said shielding member to said light emitting region in said correction value depending on the distance between said shielding member and said light emitting region, and said correction circuit carries out correction to increase said pixel signal with said correction value produced by multiplying the amount of electrons shielded by said shielding member by said gain.
7. The image display apparatus according to claim 1 , wherein said correction circuit has a table used to derive a gain used to incorporate the amount of electrons irradiated from said shielding member to said light emitting region in said correction value depending on the distance between said shielding member and said light emitting region, and said correction circuit carries out correction to reduce said pixel signal with said correction value produced by multiplying the amount of electrons reflected from peripheral light emitting regions adjacent to said light emitting region to said light emitting region in consideration of the amount of electrons shielded by said shielding member among electrons to be irradiated to said light emitting region by said gain.
8. The image display apparatus according to claim 1 , wherein said correction circuit comprises: a correction amount calculating portion that calculates the amount of electrons reflected from peripheral light emitting regions adjacent to said light emitting region to said light emitting region in consideration of the amount of electrons shielded by said shielding member or the amount of electrons shielded by said shielding member among electrons to be irradiated to said light emitting region; a table used to derive a gain used to incorporate the amount of electrons irradiated from said shielding member to said light emitting region in said correction value depending on the distance between said shielding member and said light emitting region; a multiplier that calculates said correction value by multiplying the amount of electrons obtained as the result of calculation by said correction amount calculating portion by said gain derived by said table; and a correction operation portion that carries out addition/subtraction with said correction value as the result of calculation by said multiplier to/from said pixel signal.
9. The image display apparatus according to claim 1 , wherein said correction circuit comprises: a sum-of-product operation circuit that carries out sum-of-product operation to the amount of electrons according to the range affected by electrons other than the irradiation of electrons from a predetermined electron emission portion to said light emitting region; a table used to derive a multiplying factor for said sum-of-product operation circuit depending on the distance between said shielding member and said light emitting region; and a correction operation portion that carries out operation to said pixel signal with said correction value as the result of the sum-of-product operation by said sum-of-product operation circuit.
10. A television set, comprising: the image display apparatus according to claim 1 , and a tuner that decodes a received television signal into image data that can be displayed at said image display device and supplies the data to the image display device.
11. An image display apparatus comprising: a display panel having a plurality of electron emission portions that emit electrons, a plurality of light emitting regions positioned corresponding to the plurality of electron emission portions to emit light in response to irradiation of electrons from said electron emission portion thereon, and a shielding member provided between a substrate having said electron emission portions provided thereon and an opposing substrate having said light emitting regions thereon; and a correction circuit that corrects a pixel signal for modulating said electron emission portions, said shielding member shielding electrons reflected from peripheral light emitting regions adjacent to a predetermined one of said light emitting regions to said predetermined light emitting region, and irradiating electrons from said shielding member to said predetermined light emitting region, said correction circuit carrying out a first correction with a correction value corresponding to the amount of electrons shielded by said shielding member among electrons to be irradiated to said light emitting region and a second correction with a correction value corresponding to the amount of electrons irradiated from said shielding member to said light emitting region, said correction circuit carrying out one of said first correction and said second correction to said pixel signal and the other of said correction to the pixel signal corrected by said one of said first correction and said second correction.
Unknown
June 12, 2007
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